Extraction apparatus.



H. J. (LULYJJUPUR.

EXTRACTION APPARATUS.

APPLICATION FILED AUG. 20, 1913.

1 ,QSQfiQQ Patented Dec. 23, 1913.

3 SHEETS-SHEET l.

Gar Curr;

1 Ii rgm' W H. J. GARY-CURB. EXTRACTION APPARATUS. APPLIUATIOH FILEDAUG. 20, 1913.

Patented Dec. 23, 1913.

3 SHEETS-SHEET 2.

H. J. GARY-CURB.

EXTRACTION APPARATUS. APPLICATION FILED AUG. 20, 1913 1,082,304.Patented Dec. 23, 1913.

3 SHEETS-SHEET 3.

cured a hot-plate 11.

not essential, that the hot-plate be one of UNITED STATES PATENT()FFIGE.

HENRY J. CARY-CURB, OF CHICAGO, ILLINOIS, ASSIGNOR T0 E. H. SARGENT &00., OF

CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS.

EXTRACTION APPARATUS.

Specification'of Letters Patent.

Patented Dec. 23, 1913.-

Application filed August 20, 1913. Serial No. 785,671.

employed for extracting extractive matter from substances containing it,by the solvent and so-called washing actions of volatile sol ents, suchas ether, chloroform, benZin, carbon tetrachlorid, .earbon bisulfid,gasolene, or the like, depending upon the particular substance to betreated.

Apparatus of the kind referred to involves a plurality of means fortreating, simultaneously in some or each of them, substances containingmatter to be extracted; and the primary object of my improvement is toprovidethe apparatus in very compact form to occupy the minimum ofspace, by constructing it to be revoluble on its hot-plate base, andthus render any substance under treatment conveniently accessible bybringing it, from any position in the apparatus, immediately in front ofthe user.

In the accompanying drawings, Figure 1 is a view in elevation of myapparatus showing the embodiment of my invention in its approved andpreferred form; Fig. 2 is a broken view in sectional elevation showing aknown form of glass extractor used in the apparatus; Fig. 3 is a brokenview in vertical sectional elevation of the apparatus with theextractors and flasks removed; Fig. 4 is an enlarged section on theirregular line 4-4, Fig. 1, and Fig. 5 is an enlarged broken section online 5, Fig. 3.

The supporting-stand or base of the apparatus is shown as a plurality offeet 6 extending from a central hollow hub 7 and having short posts 8rising from them. .A supply-pipe 9 for the condensing water leads intothe hub, and a discharge-pipe 10 for the water leads therefrom and is oflarger diameter than that of the supplypipe. To the upper ends of theposts is se- It is pre erred, but

the kind adapted to be electrically hea and that shown, therefore, whichis of diskshape and of well-known general construc tion, consists of anelectrical resistance elenient 12 embedded in refractory material andhaving relatively-heavy insulated terminal-wires 13 connected with itsends to project at the bottom of the plate, where they are connected tometal contact-members 14 by binding-posts 15 fastening them to a flange16 on the bottom of the hot-plate,

and between which and the contact-members astrip of insulating materialis interposed. The contact-members depend into and are confined in asuitable head 17, wherein they are connected with insulated wires in acable 18 carrying on its distal end (not shown) an ordinary plug forinsertion into the socket of an incandescent electric lamp. On thestationary hotplate 11 is rotatably mounted a supplemental metalhot-plate 19, shown of disk-form, with a depending circumferentialflange 20 carrying, at intervals, handles 21 of heat-insulatingmaterial, by which to turn the rotary plate.

A stand-pipe 22 is'serewed into the'top of the hub and communicates withthe discharge-pipe 10. A pipe 23, into which the stand-pipe telescopes,has a flanged collar 24 secured about it and fastened through theflangeto the top of the supplemental plate about a central opening therein,-through which the pipe 23 extends, as it also does through thestationary hot-plate at a central opening 25 therein, but of greaterdiameter than the pipe to avoid conductively transmitting to the latterheat fromthe plate 11.

A tank 26 having a central opening in its bottom, has fastened on thelatter a flanged collar 27 about the opening. A pipe 28 depends fromthis collar to overlap telescopically the pipe 23; and it isscrew-threaded about its lower-end portion and there slitted atintervals, as shown in Fig. 1, to adapt it to be releasably clampedabout the pipe 23 by means of a nut 29 having a tapered thread. Aninverted cup 30 is contained in the tank concentrically V therewith,being sealed about its lower edge to the tank-bottom and extending shortof the top of-the tank. A pipe 31, which is sealed in a central opening,in the upper end of the cup. dependsthrough the tankbottom centrallyinto the pipes 28. 22. A pipe 32, of relatively-small diameter,terminating ta its upper end in a goose-neck 33, having a pipe-section34 suspended from it by a flexible coupling 35, to reach nearly to thebottom of the tank, extends through a guide 36 on the upper end of thecup through the pipes 31 and 32 into the hub 7 and communicates at itslower end with the inner end of the water-supply iie 9.

A plurality of openings 37 are provided in a circular series and atuniform distances apart in the bottom of the tank, and each opening issealed by the lower end of a guide-sleeve 38. are frictionallysupported, to be raised and lowered and stay in adjusted position,open-. ended condenser-tubes '39, of a length greater than the height ofthe tank and provided with beveled lower drip-ends; and

tapering stoppers 40, preferably cork of superior quality, arefrictionally held about the lower ends of the condenser-tubes.

It will be observed that vertical movement of the condenser-tubes 39carries the stoppers 40 to insert them into and withdraw them from theextractors 42, hereinafter more definitely specified, and that there is,therefore, never anyneed for moving the corks on the tubes. This is ofad-* vantage, since such handling of the corks tends to strain and breakthem, thereby impairing them and rendering them unfit for use; and asthese corks are ofsuperior quality and therefore more or less rare andexpensive, it is highly desirable to preserve them against impairment.

The pipe 28, upon loosening the nut 29, may be adjusted telescopicallyto place the tank 26 at the desired height relative to the length of theextractor to requireonly more or less slight setting of thecondensertubes in adjusting the stoppers therein into 4 or raising themfrom the flasks. On clamp ing the pipe 28 to the pipe 23, which latteris fast with the rotary hot-plate 19, the flasks and extractor-membersand the tank with its contained condenser-tubes and cup 30 all rotateabout a central axis by rotating the supplemental hot-plate.

Cold water flows through the supply-pipe 9, and by way of the pipes 32and 34, into the bottom of the elevated tank to fill the latter forcooling the condenser-tubes and 'overflow the upper end of the cup 30 toescape down the pipe 31 and stationary pipe 22 overlapping the latter,and discharge out of the apparatus through the pipe 10. With thestationary plate 11 suitably heated, it

heats the rotary plate-'19, the heat from which volatilizes the solventin each flask supplied with the same. The parts denoted in Figs. 1 and 2respectively by the reference-numerals 41, 43', 44 45, 46 and, 47constitute the well-known Soxhlet extractor In these guide-sleeves,

42. The vapors rise through the by-pass 45 into the upper end of thebody 43, whence they ascend into the respective tube 39 to be condensedtherein by the water in the tank and flow back into the respective body43, dripping into the latter from the beveled end of the condenser-tube.When the liquid of condensation accumulates in a member 43 to an extentwhich raises its level above the upper end of the tube 46, the lattersiphons it out and returns it, for repcated use, into the flask 41.

The salient feature of my improvement lies in the compactness of thestructure, which is rendered practically possible by the rdtatablesupplemental hot-plate carrying the tank and parts thereon to rotatewith it; other fittings being constructed to, cooperate properly in therotatable apparatus.

When the plate 11 is of the type illustrated, adapting it to beelectrically heated, the rotatory plate 19 affords'the added advantageof shielding the electrical connections against coming into contact withand becoming entangled and injured by the user. By rotating the plate19, any flask may be readil brought'to convenient position for handlingby the operator, to remove and replace it without interrupting the operation of the apparatus on the other flasks. The pipe-support for thetank-containing condenser-tubes forms a hollow rotary standard. I

The on 30 is, in a sense, a mere dummy, but affor s a convenient devicefor its purpose in reducing the capacity of the tank for holding thecondenser-water. It is not, however, an essential feature of my improvedapparatus; nor, in fact, is the tank itself, since any other meanssuitable for supplying condenser-water about the tubes 39 may be used. Irealize, moreover, that considerable variation, in other particulars, ispossible in the details of construction thus specifically shown anddescribed, and I do not intend by illustrating a single, specific orpreferred embodiment of my invention to be limited thereto; my intentionbeing in the following claims to claim protection upon all the noveltythere may be in my invention as broadly as the state of the art willpermit.

I I a What I claim as new and desire to secure by Letter Patent is -1.An extraction-apparatus of the character described, having astationarily -supported hot-plate, and a rotatably-supportedsupplemental hot-plate covering said staand a flanged supplementalhot-plate r0- tatably mounted on said stationary plate to be heatedthereby and forming the extractor-support.

3. An extraction-apparatus of the character described, having a base, ahot-plate secured on said base, a supplemental hot-plate rotatablysupported to cover and be heated by said stationary plate and formingthe extractor-support, a standard rising through said plates from saidbase, having a rotatable upper portion secured to said supplementalplate, and condenser-tubes supported at the upper end of said standardto rotate therewith.

4. An extraction-apparatus of the character described, having a base, ahot-plate secured on said base, a supplemental hotplate rotatablymounted on said stationary plate to be heated thereby and forming theextractor-support, a hollow standard rising through said plates fromsaid base, having a rotatable upper section secured to said supplementalplate and telescopically connected with the lower standard-section torender the standard extensible and contractible, and condenser-tubessupported at the upper end of said standard to rotate therewith.

5. An extractionapparatus of the character described, haviaig a baseprovided with a hollow hub, a cold-water supply-pipe leading into and adischarge-pipe leading out of the hub, a hot--plate secured on saidbase, a supplemental hotplate rot-atably supported to cover and beheated by said stationary plate and forming the extractorsupport, ahollow standard rising through said plates from said hub in which itcommunicates with said discharge-pipe, said standard having a rotatableupper portion secured to said supplemental plate, condenser-tubesupported at the upper end of said standard to rotate therewith, and apipe leading through said standard for supplying condenser-water to saidtubes to escape through the hollow standard to said discharge-pipe.

6. An extraction apparatus of the character described, having a base, ahot-plate secured on said base, a supplemental hot-plate rotatablymounted on said stationary plate to be heated thereby and formingthe-extractor-support, a standard rising through said plates from saidbase, having a rotatablo upper section secured to said supplementalplate, and telescopically connected with the lower standard-section torender the standard extensible and contractible, guide-sleeves supportedat the upper end of said standard to rotate therewith, andcondenser-tubes adjustably supported in the guide-tubes.

7 An extraction-apparatus of the character described, having a base, ahot-plate secured on said base, a supplemental hot-platerotatablymounted on said stationary plate rotate therewith.

8. An extraction-apparatus of the character described, having a base, ahot-plate secured on said base, a supplemental hot-plate rotatablymounted on said stationary plate to be heated thereby and forming theextractor-support, a standard rising through said plates from said base,havinga rotatable section secured to said supplemental plate, a tank onthe upper end of the stand ard, and condenser-tubes adjustably supportedin the tank to protrude through its bottom. 1

9. An extraction-apparatus of the character described, having a base, ahot-plate secured on said base, a supplemental hot-plate rotatablymounted on said stationary plate to be heated thereby and forming theextractor-support, a standard rising from said base through said plates,having a rotatable section secured to said supplemental plate, a tank onthe upper end of the standard, a circumferential series of guide-sleevesin the tank sealed at their ends in openings in the tank-bottom, andcondenser-tubes adjustably supported in said guide-tubes to protrudethrough the tank-bottom.

10. An extraction-apparatus of the character described, having a base, ahot-plate secured on said base, a supplemental hotplate rotatablymounted on said stationary plate to be heated thereby and forming theextractor-support, a telescopically-adjustable standard rising throughsaid plates from said base, having a rotatable section secured to saidsupplemental plate, a tank on the upper end of the standard, andcondensertubes supported in the tank and longitudinally adjustablethrough the bottom thereof.

11. An extraction-apparatus of the character described, having a baseprovided with a hollow hub, a supply-pipe leading into and adischarge-pipe leading from the hub, a hot-plate secured on said base, asupplemental hot-plate rotatably supported on said stationary plate tobe heated thereby and forming the extractor-support, a hollow standardformed of telescopically-adjustable sections rising throu h said platesfrom said hub, said standard aving a rotatable upper section secured tosaid supplemental plate, a tank on the upper end of the standardcontaining guide-sleeves sealed at their lower ends in openings in thetank-bottom, condenser-tubes adjustably supported on said sleeves to beprotruded through said bottom, an inverted cup in the tank having anopening in its upper end, a dischargepipe depending from said openinginto the standard, and a pipe leading'from said supply-pipe through thestandard into the tank 10 to supply water thereto for thecondensertubes.

HENRY J'. CARY-CURB In presence of- L. HEISLAR, O. C. Avrsus.

